Saito's New Engine: FG-90R3
#76
I am surprised that you ran your engine during 1.5 minutes with the throttle to about 3/4 without adjusting both valves for a very rich setting as recommended by Saito.
Please watch the following video made by Saito Japan.
https://www.youtube.com/watch?v=esGaEm9GUhk
Regards,
Alain
#77
I took the covers off an nothing noticeable. But a shake of the engine and something is rolling around inside.
The engine will turn over and feels smooth until it reaches a certain point then it gets rough.
It was running smooth and then got noisy. At first I thought it backfired.
The engine will turn over and feels smooth until it reaches a certain point then it gets rough.
It was running smooth and then got noisy. At first I thought it backfired.
#78
Dear Kevin,
I am surprised that you ran your engine during 1.5 minutes with the throttle to about 3/4 without adjusting both valves for a very rich setting as recommended by Saito.
Please watch the following video made by Saito Japan.
https://www.youtube.com/watch?v=esGaEm9GUhk
Regards,
Alain
I am surprised that you ran your engine during 1.5 minutes with the throttle to about 3/4 without adjusting both valves for a very rich setting as recommended by Saito.
Please watch the following video made by Saito Japan.
https://www.youtube.com/watch?v=esGaEm9GUhk
Regards,
Alain
I had the wench in hand to make the adjustments.
Next time I will be ready!
Kevin
#79
I haven't installed it yet, but my cowl measures about 10.5" so I must have the larger cowl with my kit.
#81
#82
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Thanks Mike, talked to your namesake, owner of Gator rc, and says previous kits came with the 9.5" cowls. Newer ones, with 10.5 so bought one with confidence and waiting for it to install this beauty, Saito fg90r3!
#84
Here is the photos of the internal workings of the FG90R3; as you can see there is no lubrication, the crankcase is bone dry including the master rod and linked conrod connections. The master rod has a bushing that looks to be brass. I recommend before anyone who has this engine to inject lube oil into the crankcase before starting the engine for the break-in procedure.
#85
My Feedback: (33)
Here is the photos of the internal workings of the FG90R3; as you can see there is no lubrication, the crankcase is bone dry including the master rod and linked conrod connections. The master rod has a bushing that looks to be brass. I recommend before anyone who has this engine to inject lube oil into the crankcase before starting the engine for the break-in procedure.
#87
HH has sold all FG90R3's they brought in from the first batch, they are now on back order.
#89
IAW with the link, the main page identifies the FG90R3 is on back order, delivery late Feb.
http://www.horizonhobby.com/category...gines-15042--1
http://www.horizonhobby.com/category...gines-15042--1
#91
#92
Thank you. Interesting, its done like on the FG60 and the RE mods. However I dont see any "emulsion tube" (dont know if thats the right term?)
Is the fuel/air mix going straight into what chamber in the center? How is the back plate for the carb made?
Is the fuel/air mix going straight into what chamber in the center? How is the back plate for the carb made?
#93
Claus BN; the three chambers surrounding the center chamber are lightening holes to reduce the weight of the intake manifold/rear cover. The center chamber is where the fuel/air is delivered for dispersion to the three intake pipes. The carburetor is bolted to a fuel delivery emulsion tube that slides into the center chamber. The emulsion tube is approximately 4mm less in diameter than the inside diameter of the center chamber. The emulsion tube extends into the center chamber approximately 3/4's of the chamber's depth. The fuel/air travels down the length of the emulsion tube until it comes in contact with the rear face of the chamber, than is redirected back between the outside wall of the emulsion tube and inner wall of the center chamber. Then the fuel/air mixture is picked up by the three intakes pipes and delivered to the cylinders.
Last edited by ForcesR; 02-16-2017 at 07:38 PM. Reason: person directed to
#94
My Feedback: (8)
Here is the photos of the internal workings of the FG90R3; as you can see there is no lubrication, the crankcase is bone dry including the master rod and linked conrod connections. The master rod has a bushing that looks to be brass. I recommend before anyone who has this engine to inject lube oil into the crankcase before starting the engine for the break-in procedure.
#95
#98
My Feedback: (8)
https://youtu.be/ffUehgpp8Ug
ForcesR look at this video and you may have a better perception of what Ray has done to the intake as compared to your engine... hope it helps
#99
https://youtu.be/ffUehgpp8Ug
ForcesR look at this video and you may have a better perception of what Ray has done to the intake as compared to your engine... hope it helps
ForcesR look at this video and you may have a better perception of what Ray has done to the intake as compared to your engine... hope it helps